Band-saw knife for trimming shoes.



W. B., C. a; G. P. KEIGHLBY.

BAND SAW KNIFE POR TRIMMING SHOES.

APPLICATION FILED 152.30. 1908. f f 928,1 33. v Patented July 13, 1909.

3 SHBBTS-BHBBT 1.

w.A B., o. an c. P. KBIGHLBY.' BAND SAW KNIFE FOR TBIMMING SHOES.

APPLXCATIDI FILED KARJO. 1908.

Patented July 13,1909. 3 SHEETS-SHEET Z.

W. B., C. 6L C. P. KEIGHLEY. BAND SAW KNIFE POB. TBIMMI-NG SHOES.

rrmcnxox FILED up. so. ma.

Patented July 13. 1909.

3 SHEETS-SHEET 3.

UNITED STATES PATENT OFFICE'.

WILLIAM B. KEIGiHLEY, CHARLES KElGHLEY, AND CHARLES PERCY KEIGHLEY. OF VINE- LAND, NEW JERSEY..

BAND-SAW KNIFE FOR TRIMMING SHOES.

Specication o! Letters Patent.

l' Patented July 13, 1909.

To all whom it 1mi/y concern:

' Be it known that we, WUJJAM B. Kniena bund saw or knife with guards an auxiliary attachments whereby it is adapted for trimming the surplus Aleather and stock from the inseams of shoes during their manufacture.

It'is furtherdesircd .to provide ,a band saw or knife with improved guarding structures whereby the danger ot injury to the 0 )crater is reduced to a minimum; it bein a so desired that the arrangement shall be such as to prevent injury to the shoeduring the trimming operation.

In addition we desire to arrange the guards and the devices for supporting a shoe while itis being trimmed, so that. this operation may be performed much more rapidly thun'has hitherto been possible.

These objects and other advantageous ends we securey as hereinafter set forth, reference being had to the accompanying drawings, in which l Figure 1, is a side elevation of a band saw or knife constructed according to our invention; Figs, 2 and 3, are enlarged elevations of portions of the machine shown in Fig. l Fig. 4, is a vertical section of the shoe-supporting post with its guard; Fig. 5, is a perspective-view of the supporting post am its associated parts; Fig. t5, is a detached perspective view of the saw lubricating device; Fig-7, is a perspective view of the finger guard; Figf 8, is a perspective view illustrat mg the work performed by the knife or saw in removing surplus leather and stock from partially finished shoes; Fig. 9, is a. perspective view illustrating one of the saw uards mounted on the supporting post, an Figs.

.10 and 11, are respectively an enlarged side elevation and'a plan, illustrating the preferred construction of .the work supporting har c. l

' While in the specifcation'and claims w e shall refer to the cutting device as a saw, 1t is to be understood that in some instances a toothless band knife may be employed without in any Way departing from our invention.

Referring to Fig. 1 of the above drawings, A represents a main frame upon which are mounted two pulleys Band B havin"y a band saw D mounted upon and extending between them inthe well known manner. One of these pulleys, as B` is driven from any desired source of power and the other is so arranged as to be adjustable at will toward and from said first. pulley.

Supported on the frame A is a table a and to this is rigidly fixed a supporting post C of a somewhat elongated form and havin its top face beveled or inclined rearwardly 'rom the saw, the front run or length of which extends in close proximity to the front edge of said post.

As shown in Figs. '2 and 3, there is sus# pended from the upper member of the main frame a structure of: having adjustably :mounted upon it a vertically movable bar a, fand provided with an extension or bracket a* Ecarrying a pulley w". ffixed in any desired position by means of a ,headedserew a, and carries at its lower end ga block E, there heilig attached to these parts ia tlexible cord or wire a? extending up and laround the pulley ai' and having hung to its .gend a weight a". The block E is provided with upper and flower overhung slottedy guides c and e pro ,vided with passages for the saw l). In the vspace between these two guides is placed a body of felt or other absorbent. material e, 'saturated with oil, grease or other lubricat- =iug material supplied from a sightyfeed or 'other cup c, This piece c' is notched orl ,slotted as illustrated atV e for the reception Vof the saw, and is held in place by a clamping piece e4 mounted on a rod c passinrr through an opening e in the block E an adjustahly held in place by `means 'of a Said bar fr may beA screws to one side of the upper end ot the supporting post C aad extending helmut the saw, as well as around in front oit it', with its top edge at about the level ot' the upper'end 5 ot' the bar c: which projects slightlil beyond the faire ot' said post, lt is also partly held position by a elamliing' plate .1" which`A l etl'ectually protects the length ol the sawvv inunediatel)V below the bar c, there being below it a second guard c", in the present instance held to the side ot the post C by screws and also extending around the trout Agd and haelt of the saw. 'l'his latter is therefore praet'ieall completely covered from the top edge. ot' tie bar t: downwardly to the surfaee, of the table a, and in order to furthe) protect. its upper length between the support- 35 ing post and the under side ofthe bloek C, we provide another guard l` which consists of a )ieee of sheet material extending across` the flront of the upper part. of the saw and bent around so as to eorer one .side of this 3i; post, as shown best in Fig. 7. Said guard is supported in position by means of a small rod or wire extending from a bloeli` f" fastened to its lower edge and of Sueh a length as to rest uponthe top face of the post C at the rear otl the saw, while its up per end is guided by and slides in a suitable recess or passage e" in the clamping piece ff. Said bloek is slotted at; for the passage of the saw, so that it will be understood that o the guard l", while, verir eompletely covering the upper part. of the exposed length of saw immediately below the lnbrieating bloelc E, is yet. free to move and also does not. interfere. with a proper operation of said `Saw.

4:, .\s illust-rated in Figs. ttl and 11, the bar c is so shaped that. the t'ront portion of its upper edge amiroaehes` very etosely to the Saw, while it reet-.des from it both below and to the rear.

:'10 l"or maintaining the '.tnitie or xaw in a :anitably sharpened condition, we provide a pair of emery'or other grinding wheels l and Q, Fig. Al, mounted ou a shaft carried in lsuitable hearing structures [i and .7'. The

35 irst ofithese. is so mounted upon the t' 'ame ot' the mar-bine as to be bodily minable in a line subst antially parallel to the plane ot' the. adjacent. portion of the saw or ltnifo and for the purpose of moving it we provide a treadle at) p connected to it. through a treadle lever yf', a link p3. lever p4, and a seeond lilik 11",- the arrangement being sneh that when tbetrea 1 is depressed. tl-e. bearing st rut't ure,` and with it the einer);v wheel, is moved so that the latter is brought into engagement, with one sith nl the. saw or ltnite blade. This particular wheel ls designed to grind the blade pracas to grind said blade on :i deeidod bevel.

into and out otf engagement with the knife, we provide a oud treadle fl' eonneeted througha lever '7". link y", lever g, and a v enorut holt fl" to the bearing structuren.

tvavim them 'l'ree to be moved, we provide a pultey wher-l on eaeh of the two wheel shafts and aetuate these from the upper saw driving pnlle'v il through a single driving bett ff'. guiding this be'lt b v a pair of idler pulleys [it and if'. 'We also provide guides r. r' and r'' for thetsaw or ltnit'e blades and mount them on the frame as indicated in Fig. l. "l'he lirst ol` these devices guides' the sa or linil'e adjaeent to thiI cutting iost (l, while the others guide it above and below the grinding wheels.

whose inseam is Ato be trimmed, is so ap prom-hed to the .saw that the portions of the leather or .situ-li to lueut ott' extend onto the int-.lined platev-ot' the supportingpost and projeet aeross the. plane ot' the saw. As the to he removed held out and temporarily supported by said post so that. it iseut. throttgh with the greatest ease; thel front or turned over edge ot the guard plate r." serving as an additional support for the leather or :stock while it is heiner eat. lt will be noted that we mount th aw on the pulle}y wheels B and ll' so that its teeth are. reversed or pointed up'instead of down as is eustomary in band Saws. (whieh we preferablythough not ner use) and to the manner in which the saw is sharpened7 it arts to shear the material instead ot' tearing it, and So performs its work in the most satisfactory manner.

'As is obvious,v the lubricating device may distanee between it and the top at the sup? porting postv C; the weight `erving a. eouuterbalance for the lubrieating block E and its assoeiated parts so as to aid in their adjustua-nt. 'l`hese parts may be retained in any adjusted position by tightening the set' serew a. of the. rod uit. limilarly' the the blorl; either to compres..e the absorbent body or to accommodate ditt'erent sized pieces ot' material and it. in to be noted that it also prevents the. saw trom slipping ont of its guides with mnseqnent injury to the operator. f v

The use ot a baud saw t'orv the purpose of trimmim.r away the surplus le'ather or stoel: ast above deserihed is rendered possible targati' by reason nl' the fart that, there is provided a s'p| f'tiug strm'ture,I in the pre?- tieally tlat. while the wheel Q is so mounted l"or the purpose of moving this .second wheel For driving the two grinding wheels while t'nder working conditions. the shoe' G' shoe is then moved toward the saw the edge Owing to this arrane'ementl Vbe moved up or down in order vto varlvy the l'lamping plate t" may be adjusted toward loo mum...

ent instance tne post C, of such a shape that there is in front and on both sides of it an yunobstructed space through which the shoe may be swung in the manner necessary in trimming. Since said supporting post is relatively narrow and extends on one side of the saw, it docs not interfere with this move.

ment of thc shoe, although it, with the rod c and the guard c', forms an ample bearing surface for supporting the leather and shoe during the cutting operation.

By the various guards we nre enabled to prevent injury to the workmen, since 'practically the only dangerous portion of the saw exposed is a short length immediately above the material being cut.

We claim A l. The combination of a band knife having a supporting frame and operating means., a work supporting post mounted ven one side of and adjacent to said cutter, the space in front of the post being unobstructed to permit of the swinging o a shoe in a substantially vertical plane while it is being trimmed, with a Work supporting piece mounted immediately adjacent to the cuttei' but on the side thereof opposite the work supporting post, the top of the piece 'being at substantially the level of the top of the iost. I 2. The combination in a band cutter having a supporting frame and operatiiw means, of a Work supporting post mounteds on the frame and extending immediately adjacent to the cutter, with a guard for said cutter extending downwardly from the top of the ost and around that ortion of the cutter immediately in front o said post.

3. The combination of a band cutter having a su p orting frame and operating mechanism, o a work supporting post. mounted on the traine and having one of its faces adjacent to the cutter, with a bar mounted on said post and projecting be ond the face "thereof into proximity with t 1e cutter.

4. The combination of a band cutter havingr a supporting frame and opera ting mechuuisui, a work supporting post mounted on the frame and having one of its faces adjacent to the cutter, a bar mounted on said post and projecting beyond the face thereof into proximity with the cutter, and a guard structure mounted on the post and extending around the cutter to cover the portion thereof opposite said bar.

5. The combination of a band cutter having a frame and operating means, a. work supporting post mounted adjacent to the cutter, with a guard plate extending around the cutter and having its top edge at substantially the level of the top portion of the ost.

p 6. The combination with-a band cutter having a frame and operative means, of a work supporting post having an ,inclined top, a bar mounted at the upper portion of 'Said postund extending beyond thesame iutoproximity with the cutter. v

7. The combination with a band cutter having a frame and operating means, of a work supporting Cpost having an inclined top,la bar niounte at the upper portion of said post and extending beyond the saine into proximity with the saw, with a guard for said cutter extending downwardly from said bar.

8. The combination with a band having a frame and operating means, of a work supporting post mounted on one side of the cutter, a guard plate on said post eX- tcnding around the cutter, 'with a second plate mounted adjacent to the top of' the Apost so as to also extend around the cutter and provide a support in addition to the top of the post for material operated on.

t). The combination of a band cutter having a frame and operating inea-ns, a Work supporting post mounted adjacent to a portion of said cutter, and a guard carried by the post to protccta portion of the cutter :xbox-c the post.

10. The cfmibinatioii o f a band knife having a frinie and operating means, a Work supporting post mounted adjacent to the cutter, with a movable guard protectingv a portion of the cutter above said post and loosely resting on the latter.

11. The combination of a band cutter having a frame and operating means, with a work supporting post mounted to Aextend adjacent to a portion of the cutter, a guard for a part of said cutter above the post, said guard consisting ot' a vertically movable plate extending around the cutter and guided thereby, with a rod connected to said plate and loosely resting on said post.

l2. The combination with a band cutter having a supporting frame and operating means, of' a work supporting structure mounted on one side of and immediately adjacent to the cutter, and a guard plate iininediatcly adjacent to the cutter on thc side thereof nppositcto said structure and arranged with its top portion :il substantially the im cl 'of the top surface of the supporting 'having a supporting frame and operating means, of a work supporting post mounted adjacent to the cutter, and' a work support- .van TAW. i..

-ing bin' mounted on' said post So (hat ifs nppvr migo extends relatively closl to the (-nttm, sind bar having its lowvr portion hvvclml nwny from ihn vulivl.

l5. Tho combination wiih :l bund Cutler 'inning n snpporling franno und opel-utili(1r having its upper edge beveled from the front to the rear.

In testimony whereof, we have signed our l5 names to this specification, in the prcsonme yof two subscribmg witnesses.

WILLIAM B. KEIGULEY. (JIIAS'l KEIGHLEY. (Y. IEHY KIIGIILEY".

Witnessvs W. S. Bnowx, A. Vm'rsl'xjlu 

